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Finding the Fourth Proportional to 119,574.99, 165,014.60 and 65,861.91

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Solution

The fourth proportional to 119,574.99, 165,014.60 and 65,861.91 is: 90,890.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,574.99 : 165,014.60 = 65,861.91 : x
  2. Step 2: Convert to fraction form
    119,574.99/165,014.60 = 65,861.91/x
  3. Step 3: Cross multiply
    119,574.99x = 165,014.60 × 65,861.91
  4. Step 4: Simplify right side
    119,574.99x = 10,868,176,404.58
  5. Step 5: Solve for x
    x = 10,868,176,404.58/119,574.99
  6. Step 6: Final answer
    x = 90,890.05

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.